Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

A multimedia experience that chronicles the atrocities of racism.

One of the last free public hot springs is decorated with hippie art.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A common entry point to the Griffith Observatory trail holds its own wonders.

Travelers exchange letters with woodland creatures at this mini post office.

The site of murders and Satanic cult gatherings.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

This massive redwood tree has a hole in the base big enough to drive through.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

The largest drain hole in the world.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The largest permanent Monopoly board makes one of the longest games even bigger.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

An inconspicuous footbridge beloved by San Diego locals.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.